Year	Number
2004-01-01	34545
2005-01-01	36967
2006-01-01	37991
2007-01-01	39905
2008-01-01	41453
2009-01-01	44463
2010-01-01	59897
2011-01-01	61213
2012-01-01	63700
2013-01-01	68930
2014-01-01	82115
2015-01-01	104494
2016-01-01	127920